@Xml Collapsed Format

The XmlFormat.COLLAPSED format can be applied to bean properties of type array/Collection. This causes the child objects to be serialized directly inside the bean element. This format must be used in conjunction with @Xml(childName) to differentiate which collection the values came from if you plan on parsing the output back into beans. Note that child names must not conflict with other property names.

Data type JSON example Without annotation With annotation

Data type	JSON example	Without annotation	With annotation
`class MyBean { @Xml(childName="A",format=XmlFormat.COLLAPSED) public String[] a; @Xml(childName="B",format=XmlFormat.COLLAPSED) public int[] b; }`	`{ a: ['foo','bar'], b: [123,456] }`	`<object> <a> <string>foo</string> <string>bar</string> </a> <b> <number>123</number> <number>456</number> </b> </object>`	`<object> <A>foo</A> <A>bar</A> <B>123</B> <B>456</B> </object>`

class MyBean {
  @Xml(childName="A",format=XmlFormat.COLLAPSED)
  public String[] a;
  @Xml(childName="B",format=XmlFormat.COLLAPSED)
  public int[] b;
}

{
  a: ['foo','bar'],
  b: [123,456]
}

<object>
  <a>
    <string>foo</string>
    <string>bar</string>
  </a>
  <b>
    <number>123</number>
    <number>456</number>
  </b>
</object>

<object>
  <A>foo</A>
  <A>bar</A>
  <B>123</B>
  <B>456</B>
</object>

See also​

See also